Casio General x Digital ft. Heavy-Duty Men Casual Hexagon 100m Water Resistant Watch AE-1600HX-3A AE1600HX AE1600 AE-1600 AE-1600HX This robust timepiece combines bold design with practical features, featuring a large, easy-to-read LCD screen and a substantial case. With a convenient front button for the LED light, 100-meter water resistance, and a 10-year battery life, this watch is built for longevity. It includes dual time, stopwatch, timer, and alarm functions, making it ideal for sports, work, and daily activities. Module / Movement 3570 (quartz) Battery Life / Accuracy Approximately 10 years (+/-30 seconds per month) Crystal Resin glass Light LED backlight (afterglow) Case / Band Material Resin case with resin band Water Resistance 100m / 10 bar Case Size Thickness: 15.9 mm Diameter: 49.7 mm Length: 54.1 mm Lug width: Integrated Other Specifications Casio General x Digital ft. Heavy-Duty Dual time 1/100-second stopwatch (up to 24 hours, elapsed time. split time) 1-second countdown timer (up to 24 hours, auto-repeat) Hourly time signal 5 multi-function alarms (with 1 snooze alarm) Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping (digital display)